The 2S1 Gvozdika (Russian: 2С1 Гвоздика, 'Carnation') is a Soviet 122 mm self-propelled howitzer that resembles the PT-76, but is essentially a lengthened version of the MT-LB APC, mounting the 2A18 howitzer. "2S1" is its GRAU designation. The development of the 2S1 Gvozdika began in 1967 and was adopted by the Soviet Army in 1971. At the Polish Army parade, the 2S1 Gvozdika was first seen. The artillery vehicle was deployed in large numbers and has also been exported to other allies of the Soviet Union. An alternative Russian designation is SAU-122, but in the Russian Army it is commonly known as the Gvozdika. The 2S1 is fully amphibious with very little preparation, and once afloat is propelled by its tracks. A variety of wider tracks are also available to allow the Gvozdika to operate in snow or swamp conditions. It is NBC protected and has infrared night-vision capability. It fought in the Soviet War in Afghanistan, Iraq, Libya, Syria, and Ukraine, and it is still in service today.